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Vulnerability record · CVE-2025-15517 · published 23 March 2026

CVE-2025-15517: Tp-link archer nx600 firmware missing authentication for critical function vulnerability

Tp Link · Archer Nx600 Firmware

A missing authentication check in the HTTP server on TP-Link Archer NX200, NX210, NX500 and NX600 to certain cgi endpoints allows unauthenticated access intended for authenticated users. An attacker may perform privileged HTTP actions without authentication, including firmware upload and configuration operations.

8.6 CVSS 4.0 High EPSS 3.0% · top 13.3% CWE-306 · Missing authentication for critical function
8.6CVSS 4.0 base score
3.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

A missing authentication check in the HTTP server on TP-Link Archer NX200, NX210, NX500 and NX600 to certain cgi endpoints allows unauthenticated access intended for authenticated users. An attacker may perform privileged HTTP actions without authentication, including firmware upload and configuration operations.

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.tp-link.com/en/support/download/archer-nx200/#Firmware Product
https://www.tp-link.com/en/support/download/archer-nx210/#Firmware Product
https://www.tp-link.com/en/support/download/archer-nx500/#Firmware Product
https://www.tp-link.com/en/support/download/archer-nx600/#Firmware Product
https://www.tp-link.com/us/support/faq/5027/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.5CVE-2025-15605Tp-link archer nx600 firmware hard-coded credentials vulnerabilityA hardcoded cryptographic key within the configuration mechanism on TP-Link Archer NX200, NX210, NX500 and NX600 enables decryption and re-encryption…EPSS 0.13%8.5CVE-2025-15518Tp-link archer nx600 firmware os command injection vulnerabilityImproper input handling in a wireless-control administrative CLI command on TP-Link Archer NX200, NX210, NX500 and NX600 allows crafted input to be e…EPSS 0.62%8.5CVE-2025-15519Tp-link archer nx600 firmware os command injection vulnerabilityImproper input handling in a modem-management administrative CLI command on TP-Link Archer NX200, NX210, NX500 and NX600 allows crafted input to be e…EPSS 0.62%8.8CVE-2026-67277MikroTik RouterOS btest missing authentication leaks kernel memory and crashes kernelRouterOS accepts a "related" btest connection before the primary session is authenticated, letting an unauthenticated client start an IPv4 UDP test. …KEVEPSS 1.6%analysed8.8CVE-2026-59822LiteLLM MCP endpoint auth bypass via OAuth2 passthrough fallbackLiteLLM's MCP Streamable HTTP endpoint, prior to 1.84.0, let an unauthenticated attacker send a fabricated Authorization header that triggered an OAu…KEVEPSS 0.84%analysed9.3CVE-2026-72529TrueConf Server missing authentication allows remote script executionTrueConf Server versions 5.3.X through 5.3.9, 5.4.X through 5.4.9, 5.5.X through 5.5.5, and earlier expose an undocumented function on port 4307/TCP …KEVEPSS 1.5%analysed9.8CVE-2026-46817Oracle E-Business Suite Payments missing authentication allows takeoverOracle Payments in Oracle E-Business Suite 12.2.3 through 12.2.15 contains an easily exploitable flaw in the File Transmission component. An unauthen…KEVEPSS 0.81%analysed9.8CVE-2026-56164Microsoft SharePoint Server missing authentication allows privilege elevationMicrosoft Office SharePoint Server contains a missing authentication flaw in a critical function (CWE-306), letting an unauthenticated attacker reach…KEVEPSS 1.0%analysed

Source: NIST National Vulnerability Database (record CVE-2025-15517), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.